SMALL FACTORIALS

PROBLEM:- SMALL FACTORIALS

You are asked to Calculate the factorials of small positive numbers in the range of 100.

INPUT- First line contains an integer T which represents the number of test cases, followed by T lines each containing a single positive Integer.

 OUTPUT- For each integer, print the factorial of that number.

eg:-

Input:-

2 (test cases)

3

4

Output:-

6

24

SOLUTION:-

#include<stdio.h>

int index;

int main()

{

int t,num,temp,x;

scanf("%d",&t);

while(t--)

{

scanf("%d",&num);

int arr[200]={0};

arr[0]=1;

int i=1;

int current=0;

while(i<=num)

{

index=temp=0;

while(arr[index]>0 || index<current)

{

x=(arr[index]*i)+temp;

arr[index]=x%10;

temp=x/10;

index++;

}

while(temp>0)

{

arr[index]=temp%10;

temp/=10;

index++;

}

i++;

current=index-1;

}

index--;

while(index>=0)

{

printf("%d",arr[index]);

index--;

}

printf("\n");

}

return 0;

}